/*
 * 
 * 
 * 
 * 
 */
#include <io.h>
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include "system.h"
#include "DM9000A.H"
#include "DM9000A.C"
//#include "sys/alt_irq.h"
#include <../src/alt_irq_register.c>

#if 0
unsigned int rx_len,i,packet_num,rx_cnt,tx_cnt;


#define data_lenght 1468            // Maximun Data lenght 1468 bytes
#define flenght (data_lenght+0x2E)        //Total packet lenght 

 unsigned char SND[flenght]; // Payload buffer
 
 unsigned char RX_DATA[flenght]; // Payload buffer

//-------------------------------------------------------------------------
/* DM9000_init I/O routine */

//-------------------------------------------------------------------------
//-------------------------------------------------------------------------
//-------------------------------------------------------------------------

void UDP_Init(void)
 {              
 unsigned int IPsource_1,IPsource_2,IPsource_3,IPsource_4;
 unsigned int IPdestination_1,IPdestination_2,IPdestination_3,IPdestination_4;
 unsigned int IPchecksum1,IPchecksum2,IPchecksum3,IPchecksum4,IPchecksum5;
 unsigned int Mac_source1, Mac_source2, Mac_source3, Mac_source4, Mac_source5, Mac_source6;
 unsigned int Mac_dest1, Mac_dest2, Mac_dest3, Mac_dest4, Mac_dest5, Mac_dest6;
 unsigned int lenght_h, lenght_l;
 unsigned int  IPlenght_h, IPlenght_l,  IPlenght;
             
 IPsource_1 = 192;        // Assign ie: 192.168.0.44 IP for the CD0 
 IPsource_2 = 168;
 IPsource_3 = 0;
 IPsource_4 = 44;
 
 IPdestination_1 = 192;   // Insert your IP data here
 IPdestination_2 = 168;
 IPdestination_3 = 0;
 IPdestination_4 = 55;

 Mac_dest1 = 0xF4;         // Insert your MAC address data here
 Mac_dest2 = 0x6D;
 Mac_dest3 = 0x04;
 Mac_dest4 = 0x20;
 Mac_dest5 = 0x9F;
 Mac_dest6 = 0xF1;
// Mac_dest1 = 0XFF;         // Insert your MAC address data here
// Mac_dest2 = 0xFF;
// Mac_dest3 = 0xFF;
// Mac_dest4 = 0xFF;
// Mac_dest5 = 0xFF;
// Mac_dest6 = 0xFF;
 Mac_source1 =  0x01;      // Assign an MAC address for DE2
 Mac_source2 =  0x60;
 Mac_source3 =  0x6E;
 Mac_source4 =  0x11;
 Mac_source5 =  0x02;
 Mac_source6 =  0x0F;
 
 lenght_h = ((data_lenght+8) & 0xFF00)>>8; // Convert in H byte and L byte
 lenght_l = ((data_lenght+8) & 0x00FF);

 IPlenght = data_lenght + 8 + 20;     // IP Lenght for IP header
 IPlenght_h = (IPlenght & 0xFF00)>>8; // Convert in H byte and L byte
 IPlenght_l = (IPlenght & 0x00FF);
 // Calculating the IP checksum
 IPchecksum1 = 0x0000C511 + (IPsource_1<<8)+IPsource_2+(IPsource_3<<8)+IPsource_4+
         (IPdestination_1<<8)+IPdestination_2+(IPdestination_3<<8)+(IPdestination_4)+
         (IPlenght_h<<8) + IPlenght_l;
 IPchecksum2 =  ((IPchecksum1&0x0000FFFF)+(IPchecksum1>>16));
 IPchecksum3 = 0x0000FFFF - IPchecksum2;
 IPchecksum4 = (IPchecksum3 & 0xFF00)>>8; 
 IPchecksum5 = (IPchecksum3 & 0x00FF);
 
 unsigned char TXT[flenght] =  { Mac_dest1, Mac_dest2, Mac_dest3, Mac_dest4 ,Mac_dest5, Mac_dest6,
                            Mac_source1, Mac_source2, Mac_source3, Mac_source4, Mac_source5, Mac_source6,
                            0x08, 0x00, 0x45, 0x00, IPlenght_h, IPlenght_l,
                            0x00, 0x00, 0x00, 0x00, 0x80, 0x11,
                            IPchecksum4, IPchecksum5, IPsource_1, IPsource_2, IPsource_3, IPsource_4,
                            IPdestination_1, IPdestination_2, IPdestination_3, IPdestination_4, 0x04, 0x00, 
                            0x04, 0x00, lenght_h, lenght_l, 0x00, 0x00};             

    for (i = 0; i < 42; i++) // Load the TXT[] in the SND (ethernet packet).
     SND[i] = TXT[i];
    
    for (i = 42; i < flenght-4; i++) // generating the data to send.
     SND[i] = i-42;
     
    SND[i++] = 0x35;   // This checksum is not correct... but also the net recieve the packets correctly.
    SND[i++] = 0x15;   // To do, calculate checksum.
    SND[i++] = 0xF0;
    SND[i++] = 0x13;   
    

 }
 
void ethernet_interrupts(void)
{
    
    ReceivePacket(RX_DATA,&rx_len);
    rx_cnt++;
    int j;
    for(j=0;j<rx_len;j++)
    {
        printf("%x ",RX_DATA[j]); 
    }
    printf("\n\n");
} 
 
int main(void)
{
    UDP_Init();
    printf("Working...\n"); 
    msleep(500);
    DM9000_init();//Initialize the DM9000A.
    alt_irq_register( DM9000A_0_IRQ, NULL, (void*)ethernet_interrupts );
    
    rx_cnt = 0;
    tx_cnt = 0;
      while (1)
      {  
        tx_cnt++;
        TransmitPacket(SND,flenght);
        printf("Tx %5d frame\n",tx_cnt);
        printf("Rx %5d frame\n\n",rx_cnt);
        msleep(500);
      }

}
//-------------------------------------------------------------------------


#endif